Help for Unruly Rulers

I have tried using several different things to keep my rulers in a safe, organized place…to no avail. It seems like the one I need is always the one that is AWOL so I decided to do something about it. I was inspired by one I saw posted on this board a week or so ago so I headed to Lowe’s for some supplies…total purchase: about $8. I had some spray paint on hand and a piece of very thin plywood. With supplies in hand, I invaded my DH’s workshop. I only needed a saw (almost any kind will do) and some clamps. This is what I came up with.